package com.hmdp.utils;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.hmdp.dto.UserDTO;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Component
public class RefreshLoginInterceptor implements HandlerInterceptor {


   StringRedisTemplate stringRedisTemplate;

    public RefreshLoginInterceptor(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {


        String token = request.getHeader("authorization");
        if (StrUtil.isBlank(token)) {

            return true;
        }
        String key = RedisConstants.LOGIN_USER_KEY + token;

        Map<Object, Object> map = stringRedisTemplate.opsForHash().entries(key);
        if (map.isEmpty()) {

            return true;
        }

        UserDTO userDTO = BeanUtil.fillBeanWithMap(map, new UserDTO(), false);

        UserHolder.saveUser(userDTO);
        stringRedisTemplate.expire(key,RedisConstants.LOGIN_USER_TTL, TimeUnit.MINUTES);



        return true;


    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}
